Two new species of Characidium Reinhardt (Characiformes: Crenuchidae) from northeastern Brazilian coastal drainages

Autor(es)

Zanata, Angela M. ^[1] ; Camelier, Priscila ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Bahia, Inst Biol, Dept Zool, BR-40170290 Salvador, BA - Brazil

^[2] Univ Sao Paulo, Museu Zool, BR-04218970 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Neotropical Ichthyology; v. 13, n. 3, p. 487-498, JUL-SEP 2015.
• Citações Web of Science: 5

Resumo

Two new species of Characidium , onefrom the rio Pardo basin, and anotherfrom the rio Paraguaçu basin, Bahia, Brazil, are described. The first new speciesis distinguished from its congeners by having conspicuous black vertical traces on body, formed by the concentration of melanophores along posterior margin of scales. The species further differs from most congeners by the presence of a conspicuous 3-shaped black blotch on the caudal fin and isthmus not covered by scales. The other new species is distinguished from congeners by having irregular dark blotches on dorsum alternating elongation to one or the other side of body, usually not connected to lateral blotches. The species can be further characterized by the absence of conspicuous blotches or bars on fins and the presence of secondary sexual dimorphism, such as pelvic fins of mature males longer than in females and with bony hooks. (AU)

• Processo FAPESP: 12/00840-6 - Especiação e biogeografia nos gêneros Glandulocauda Eigenmann e Mimagoniates Regan (Characiformes: Characidae: Glandulocaudinae)
• Beneficiário: Priscila Camelier de Assis Cardoso
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/50282-7 - Inventário da fauna de Characiformes (Teleostei, Ostariophysi) da América do Sul
• Beneficiário: Naercio Aquino Menezes
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático